# Indroduction to the National Arithmetic ...

R.S. Davis & Company, 1854

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Página 280 - RULE. — Divide the difference of the extremes by the number of terms less one, and the quotient is the common difference.
Página 146 - Multiply each numerator into all the denominators except its own for a new numerator, and all the denominators together for a common denominator.
Página 209 - Compute the interest on the principal sum, from the time when the interest commenced, to the first time when a payment was made, which exceeds, either alone, or in conjunction with the preceding payments, if any, the interest at that time due ; add that interest to the principal, and from...
Página 276 - Multiply the divisor, thus augmented, by the last figure of the root, and subtract the product from the dividend, and to the remainder bring down the next period for a new dividend.
Página 266 - Find the greatest square number in the first or left hand period, place the root of it at the right hand of the given number, (after the manner of a quotient in division...
Página 140 - An improper fraction is one whose numerator is equal to, or greater than its denominator ; as, \$, -f . A mixed number is a whole number and a fraction expressed together; as, 4f, 25-ht.
Página 308 - A sphere is a solid, bounded by one continued convex surface, every point of which is equally distant from a point within, called the centre.
Página 136 - The Greatest Common Divisor of two or more numbers is the greatest number that will exactly divide each of them. Thu4, 18 is the greatest, common divisor of 36 and 54, since it is the greatest number that will divide each of them without a remainder.
Página 306 - To find the solidity, or volume, of a cylinder. RULE. — Multiply the area of the base by the altitude, and the product will be the solidity or volume.
Página 213 - RULE. — Divide the given interest by the interest of the given principal for 1 year, and the quotient is the time.